Frequently Asked Questions (FAQs)

USP provides answers to Frequently Asked Questions (FAQs) as a service to stakeholders and others who are seeking information regarding USP’s organization, standards, standards-setting process, and other activities. These are provided for informational purposes only, and should not be construed as an official interpretation of USP text, or be relied upon to demonstrate compliance with USP standards or requirements. USP does not endorse any specific brand or product. For questions not answered here, USP provides multiple routes of support by which the public may seek additional information. Questions on specific standards should be directed to the appropriate contact listed on the Scientific Support page.